I think trying to predict human behavior, and developing ways to do it best, is a great exercise, and one that can also have immediate benefits (being better at predicting what people will do makes your social skills better).
This can also be taken as a full project of rationality, doing scholarship (science of people), using math and probability (maybe even inventing your own algorithms), gathering, organizing, and analyzing data (like personality types of people you know and what can they tell you about them)...
I think trying to predict human behavior, and developing ways to do it best, is a great exercise, and one that can also have immediate benefits (being better at predicting what people will do makes your social skills better).
This can also be taken as a full project of rationality, doing scholarship (science of people), using math and probability (maybe even inventing your own algorithms), gathering, organizing, and analyzing data (like personality types of people you know and what can they tell you about them)...